[INFO] fetching crate loaded_dice 0.2.1... [INFO] building loaded_dice-0.2.1 against 1.55.0 for beta-1.56-1 [INFO] extracting crate loaded_dice 0.2.1 into /workspace/builds/worker-17/source [INFO] validating manifest of crates.io crate loaded_dice 0.2.1 on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate loaded_dice 0.2.1 [INFO] finished tweaking crates.io crate loaded_dice 0.2.1 [INFO] tweaked toml for crates.io crate loaded_dice 0.2.1 written to /workspace/builds/worker-17/source/Cargo.toml [INFO] crate crates.io crate loaded_dice 0.2.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2222fa64c69d8b96fe8d89f77af79efefaa9c1d99e4903b9ef725c9a62600225 [INFO] running `Command { std: "docker" "start" "-a" "2222fa64c69d8b96fe8d89f77af79efefaa9c1d99e4903b9ef725c9a62600225", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2222fa64c69d8b96fe8d89f77af79efefaa9c1d99e4903b9ef725c9a62600225", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2222fa64c69d8b96fe8d89f77af79efefaa9c1d99e4903b9ef725c9a62600225", kill_on_drop: false }` [INFO] [stdout] 2222fa64c69d8b96fe8d89f77af79efefaa9c1d99e4903b9ef725c9a62600225 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b8ab38fdc8c3b46b7d65580b2c2a3d81237c20576cfb0d16637b16711c6d544c [INFO] running `Command { std: "docker" "start" "-a" "b8ab38fdc8c3b46b7d65580b2c2a3d81237c20576cfb0d16637b16711c6d544c", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.70 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling loaded_dice v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/example.rs:9:14 [INFO] [stdout] | [INFO] [stdout] 9 | for i in (0..iter) { [INFO] [stdout] | ^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/example.rs:5:24 [INFO] [stdout] | [INFO] [stdout] 5 | use rand::{thread_rng, Rng}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/example.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | for i in (0..iter) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.74s [INFO] running `Command { std: "docker" "inspect" "b8ab38fdc8c3b46b7d65580b2c2a3d81237c20576cfb0d16637b16711c6d544c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8ab38fdc8c3b46b7d65580b2c2a3d81237c20576cfb0d16637b16711c6d544c", kill_on_drop: false }` [INFO] [stdout] b8ab38fdc8c3b46b7d65580b2c2a3d81237c20576cfb0d16637b16711c6d544c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5ada286ccfb9f3bf097fdb494a91fd88a5909bac7506d2bbe44d566f19d51fc1 [INFO] running `Command { std: "docker" "start" "-a" "5ada286ccfb9f3bf097fdb494a91fd88a5909bac7506d2bbe44d566f19d51fc1", kill_on_drop: false }` [INFO] [stderr] Compiling loaded_dice v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/example.rs:9:14 [INFO] [stdout] | [INFO] [stdout] 9 | for i in (0..iter) { [INFO] [stdout] | ^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/example.rs:5:24 [INFO] [stdout] | [INFO] [stdout] 5 | use rand::{thread_rng, Rng}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/example.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | for i in (0..iter) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression [INFO] [stdout] --> src/lib.rs:78:18 [INFO] [stdout] | [INFO] [stdout] 78 | for i in (0..iter) { [INFO] [stdout] | ^^^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/lib.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | for i in (0..iter) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.48s [INFO] running `Command { std: "docker" "inspect" "5ada286ccfb9f3bf097fdb494a91fd88a5909bac7506d2bbe44d566f19d51fc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ada286ccfb9f3bf097fdb494a91fd88a5909bac7506d2bbe44d566f19d51fc1", kill_on_drop: false }` [INFO] [stdout] 5ada286ccfb9f3bf097fdb494a91fd88a5909bac7506d2bbe44d566f19d51fc1